Incorporation of glass wool waste in concrete

The incorporation of wastes to replace the aggregates into concrete has been an alternate to create new routes to disposal it. In this way, the aim of this paper is to study the incorporation of glass wool waste into concrete. The incorporation was performed in two routes. In the first, the waste was milled to be incorporated. The second, the waste was incorporated as-received into concrete. The characterization was performed in the milled waste by chemical analysis, X-ray diffraction, size analysis and scanning electrons microscopy coupled with EDS spectrum. The waste content into the concrete was 2.5, 5.0, 7.5 and 10 wt% in both tests. The results indicate that incorporation of 2.5% of waste decreased the strength resistance in around 3.1% at 28-days curing. Thus, incorporation of glass wool waste into concrete can be an alternative to its disposal. However, the waste content into concrete should be estimated according to the final strength resistance required by concrete. (author)